The lens focusing illumination can produce a sense of acupuncture and heat on the human body. Acting on the nerve roots, nerve trunks, ganglia, acupoints and local pain points of the human body, it can adjust various internal systems to restore normal physiological balance. This method is commonly used for the treatment of arthritis, sports injuries, postoperative wound healing, diabetes and skin diseases, etc. (Put the 980nm laser close to the skin, the photons will penetrate the skin and be absorbed by the mitochondria, and the mitochondria are the energy-generating part of the cells, this energy can promote the cells to carry out positive physiological reactions, such as restoring the normal morphology and function of the cells.)